Nez Perce County, Idaho Population 2024

43,065

Nez Perce County, Idaho's estimated 2024 population is 43,065 with a growth rate of 0.18% in the past year according to the most recent United States census data. Nez Perce County, Idaho is the 10th largest county in Idaho. The 2010 population was 39,317 and has seen a growth of 9.53% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202943,455780.18%
202843,377780.18%
202743,299780.18%
202643,221780.18%
202543,143780.18%
202443,065780.18%
202342,987780.18%
202242,9094090.96%
202142,5003550.84%
202042,1451,5443.8%
201940,6011930.48%
201840,408320.08%
201740,3761760.44%
201640,2001610.4%
201540,0391660.42%
201439,873540.14%
201339,8193070.78%
201239,512680.17%
201139,4441270.32%
201039,31700%
199033,7545341.61%
198033,2202,8449.36%
197030,3763,31012.23%
196027,0664,40819.45%
195022,6583,78520.06%
194018,8731,2827.29%
193017,5912,33815.33%
192015,253-9,607-38.64%
191024,86011,11280.83%
190013,74810,901382.89%
18902,847-1,118-28.2%
18803,9652,358146.73%
18701,607-41,848-96.3%
2024 Growth Rate
0.18% (78)
County Website
Nez Perce County
State
Idaho
County Seat
Lewiston
2020 Population
42,145
Area
848 mi²
Density
51 people/mi²
Growth Since 2020
2.18% (920)
Founded
February 4, 1864

Population by Race

Race
Population
Percentage (of total)
White37,53388.36%
Two or more races2,1685.1%
Native American1,9114.5%
Asian3660.86%
Other race3260.77%
Native Hawaiian or Pacific Islander1300.31%
Black or African American430.1%

White

Two or more races

Native American

Asian

Other race

Native Hawaiian or Pacific Islander

Black or African American

Nez Perce County, Idaho Population by Race

Nez Perce County, Idaho Population Pyramid 2024

Nez Perce County, Idaho Median Age

40.9

Total

40.5

Male

41.3

Female

Nez Perce County, Idaho Adults

There are 33,384 adults, (8,733 of whom are seniors) in Nez Perce County, Idaho.

Nez Perce County, Idaho Age Dependency

72.3

Age Dependency Ratio

35.4

Old Age Dependency Ratio

36.9

Child Dependency Ratio

Nez Perce County, Idaho Sex Ratio

Female21,39450.37%
Male21,08349.63%

Nez Perce County, Idaho Population by Age

Nez Perce County, Idaho Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All17,2502.3972.227.8
Married8,2102.929010
Non Family6,2411.2854.445.6
Female1,8423.2257.242.8
Male9573.4163.736.3

2.89

Average Family Size

2.39

Average Household Size

72.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Nez Perce County, Idaho Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,3944.69%
Associates Degree3,43811.56%
Bachelors Degree5,37218.07%
Graduate Degree2,5838.69%
High School Graduate8,53828.72%
Less Than 9th Grade7082.38%
Some College7,69725.89%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Nez Perce County, Idaho Educational Attainment by Sex (over 25)

Nez Perce County, Idaho Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White26,50924,7757,129
Native American1,1521,089319
2+ Races1,021916243
Hispanic822637184
Asian295262123
Other Race24421658
Islander29291
Black23234

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 41.69%.

Nez Perce County, Idaho Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$57,174$64,783$51,908
Graduate Degree$70,316$71,786$69,133
High School Graduate$40,955$52,485$33,092
Less Than 9th Grade$25,401$21,735$26,816
Overall$48,216$55,975$40,551
Some College$45,534$54,705$35,807

$48,216

Average Earnings

$55,975

Average Male

$40,551

Average Female

Nez Perce County, Idaho Earnings by Educational Attainment

Nez Perce County, Idaho Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Nez Perce County, Idaho Language

96.52% of Nez Perce County, Idaho residents speak only English, while 3.48% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.56% of the population.

Nez Perce County, Idaho Language

Nez Perce County, Idaho Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White35,5884,43612.46%
Native1,87842622.68%
Multiple1,97627513.92%
Hispanic1,59722714.21%
Islander1306146.92%
Other2983712.42%
Asian349298.31%

13.11%

Overall Poverty Rate

12.23%

Male Poverty Rate

13.97%

Female Poverty Rate

Poverty in Nez Perce County, Idaho

The race most likely to be in poverty in Nez Perce County, Idaho is Islander, with 46.92% below the poverty level.

The race least likely to be in poverty in Nez Perce County, Idaho is Asian, with 8.31% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.8%. Among those working part-time, it was 18.05%, and for those that did not work, the poverty rate was 19.52%.

Nez Perce County, Idaho Poverty

rate

Rate
Poverty
Less Than 9th Grade17.04%
High School15.81%
Some College9.18%
Bachelors or Greater5.75%

Nez Perce County, Idaho Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed20.59%
Female Unemployed15.88%
Female Employed7.72%
Male Employed6.49%

Nez Perce County, Idaho Poverty Rate by Employment Status and Sex

Nez Perce County, Idaho Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$91,340$108,448
Households$71,466$91,289
Married Families$101,269$-999,999,999
Non Families$38,083$54,714

mean

median

Income by Household Type

Nez Perce County, Idaho Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.7%

Overall Marriage Rate

50.7%

Male Marriage Rate

48.7%

Female Marriage Rate

Nez Perce County, Idaho Married by Age and Sex

male

female

Nez Perce County, Idaho Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Nez Perce County, Idaho Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Nez Perce County, Idaho Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,844

Number of Veterans

2,561

Male Veterans

283

Female Veterans

War
Veterans
Vietnam1,152
First Gulf War647
Second Gulf War551
Korea172
World War II19

Nez Perce County, Idaho Veterans by War

count

Age Group
Veterans
75+869
65 to 74763
35 to 54598
55 to 64507
18 to 34107

Nez Perce County, Idaho Veterans by Age

count

Name
Veterans
% of Total
White2,6058.69%
Native American1078.07%
2+ Races695.35%
Other Race6321.14%
Hispanic565.18%

Nez Perce County, Idaho Veterans by Race

Nez Perce County, Idaho Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.1%

Veteran Poverty Rate

36.5%

Veteran Disability Rate

Nez Perce County, Idaho Veterans by Education

LaborForceParticipation

60%

Labor Force Participation

58%

Employment Rate

2.9%

Unemployment Rate

Nez Perce County, Idaho Employment by Age

LaborForceParticipation

Nez Perce County, Idaho Employment by Race

LaborForceParticipation

Nez Perce County, Idaho Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

52.32%

Born in Nez Perce County, Idaho

97.72%

Native Born

2.28%

Foreign Born

0.64%

Non Citizen

1.64%

Naturalized

Place of Birth

97.72% of Nez Perce County, Idaho residents were born in the United States, with 52.32% having been born in Idaho. 0.64% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Nez Perce County, Idaho Place of Birth

Sources